Question 1069484
There are 13 hearts in the deck, there are 4 jacks in the deck, there is one Jack of hearts.
{{{P=(13+4-1)/52=16/52=4/13}}}
Probability shows you outcomes for the event divided by total outcomes. 
For odds, you need outcomes against the event. 
Just subtract "outcomes for" from total outcomes.
{{{O[A]=13-4=9}}}
{{{O[F]=4}}}
So odds in favor would be 4:9.